1. Only show Audio Player.
[audio=http://icyleaf.com/1973.mp3]
2. Only show Audio Player and Music Title.
[audio=http://icyleaf.com/1973.mp3,1973]
3. Only show Audio Player and can be download.
[audio=http://icyleaf.com/1973.mp3,,download]
4. Show Audio Player, Music Title and can be download.
[audio=http://icyleaf.com/1973.mp3,1973,download]